Welcome to All Things Plants,
@airjordan !
I'm not an expert on cactus, by any means -- I mostly specialize in underwatering my houseplants, so the cacti and succulents like living with me.
Swayback has given you a lot of excellent advice, and I hope it helps you to save the plants; I'd just like to re-emphasize that the cacti really aren't compatible with the geranium and other houseplants that they are with, and should be planted in their own pot using a potting mix for cactus (which will be very coarse and sandy, not really that much like soil actually). Good luck with reviving your plants, and if they don't survive you will still have learned something about how to grow cactus!
